Home / 88,265.18-121,808.31-47,981.64

Finding the Fourth Proportional to 88,265.18, 121,808.31 and 47,981.64

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Solution

The fourth proportional to 88,265.18, 121,808.31 and 47,981.64 is: 66,215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,265.18 : 121,808.31 = 47,981.64 : x
  2. Step 2: Convert to fraction form
    88,265.18/121,808.31 = 47,981.64/x
  3. Step 3: Cross multiply
    88,265.18x = 121,808.31 × 47,981.64
  4. Step 4: Simplify right side
    88,265.18x = 5,844,562,479.43
  5. Step 5: Solve for x
    x = 5,844,562,479.43/88,265.18
  6. Step 6: Final answer
    x = 66,215.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.